Thermodynamics and Kinetics of Refractory Multi-principal Element Alloys: An Experimental and Modeling Comparison
Thermodynamics and Kinetics of Refractory Multi-principal Element Alloys: An Experimental and Modeling Comparison
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DOI：
10.1007/s11661-023-06980-7
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发表时间：
2023-02
期刊：
影响因子：
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通讯作者：
R. Puerling;A. Mikłas;F. Coury;N. Philips;P. Mason;N. Peterson;A. Deal;J. Klemm-Toole;A. Clarke
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文献类型：
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作者：
R. Puerling;A. Mikłas;F. Coury;N. Philips;P. Mason;N. Peterson;A. Deal;J. Klemm-Toole;A. Clarke
对具有高温性能的结构合金的研究导致了对难熔多主元素合金（RMPEAs）的探索。在这项工作中，凝固偏析和均匀化的两个RMPEAs，NbTaTiW和MoNbTaTi的实验结果进行了比较，模拟使用Scheil和DICTRA模块在Thermo-Calc®。Scheil计算准确地预测了观察到的凝固偏析，而DICTRA预测了一般趋势，并可以提供在给定温度下实现均匀化的最短时间。
The search for structural alloys capable of ultrahigh temperature performance has led to the exploration of refractory multi-principal element alloys (RMPEAs). In this work, experimental results for solidification segregation and homogenization of two RMPEAs, NbTaTiW and MoNbTaTi, are compared to simulations using the Scheil and DICTRA modules in Thermo-Calc®. Scheil calculations accurately predict the observed solidification segregation, while DICTRA predicts general trends and can provide a minimum time to achieve homogenization at a given temperature.